{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xea0b216ae290c8ec2147608eb1922ba3c29980ddb237be26f8514df2fe607939",
    "signature": "0xcd73f4b4dead28013f2b01d5c7078141924d9bb891e15b923b99c235759614206be467db956492dc0992d57a154793fc99f947e6579870f36c3db3b0525b290f1b",
    "signer": "0x552Ae3d6606d1ea506Aa710a950Da685E4D9e2c7",
    "userId": "917959466"
  }
}